/Users/silei/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.6.3/lib/bundler/runtime.rb:222: warning: Insecure world writable dir /usr/local/share in PATH, mode 040777 /Users/silei/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.6.3/lib/bundler.rb:301: warning: Insecure world writable dir /usr/local/share in PATH, mode 040777 DEPRECATION WARNING: You have required active_support/core_ext/object/to_json. This file will be removed in Rails 4.2. You should require active_support/core_ext/object/json instead. (called from require at /Users/silei/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.6.3/lib/bundler/runtime.rb:76)

rails version is 4.1.1

How to fix this ?